Thats pretty nice but for homebrew, has some problems. Not insurmountable, but testing patience
Very thin ground heat relief tracks. Could easily be etched away.
Tiny through hole pads, more suited to pro production than home brew. Would test alignment top/bottom to the limit. (small holes can be difficult to home drill also)
Through holes under the chip. OK for pro production but tricky for home brew
Since most home brewers can't do through hole plating, thin wires would have to be fitted in many vias and the connectors.